Paxar 9474 - Manual (Page 31)

6. Load the cassette.
◆ Use your finger to guide the edge of the leader around the
ribbon guide post.
◆ Place the cassette onto the ribbon spools and push it
against the back wall. The spool lock(s) will drop out.
The ribbon must be on top of the upper guide.
7. Manually turn the upper ribbon spool until the ribbon is tight.
Make sure the ribbon is not wrinkled or bunched.
8. Slide the supply up to the printhead. Make sure the ribbon is
positioned correctly.
9. While holding the cassette in, turn the printhead lever to the
right to lock the printhead in place.
10. Close the front cover.
Upper
Guide
Printhead
Lever
Spool
Lock
3-6 Loading a Ribbon